The celebrations begin as soon as the residency starts when Ravinia favorite Garrick Ohlsson sits down at the Steinway to mark the 200th birthday year of Frédéric Chopin. The 150th birthday of Gustav Mahler is celebrated with James Conlon concluding his multi-year Mahler cycle when he leads the CSO in the Adagio of the unfinished 10th symphony. On the same program, Samuel Barber’s centennial is celebrated with his Adagio for Strings and Joshua Bell performing the Violin Concerto.

Closer to home, the birthdays of Music Director James Conlon, 60, and former Music Director Christoph Eschenbach, 70, will be acknowledged throughout the summer. Conlon, will recreate excerpts from his first Wagner Ring Cycle.

Then the CSO returns to the Martin Theatre for two performances each of Mozart’s Così fan tutte and The Marriage of Figaro, featuringsuch stars as Frederica von Stade and Nathan Gunn. Eschenbach takes a musical travelogue through his career in concerts that feature him as conductor and soloist working with such colleagues and protégés as Renée Fleming, performing Strauss’s Four Last Songs.

The 200th anniversary of Mexican Independence is acknowledged in a few guises next summer, including the CSO concerts that feature one of Mexico City’s favorite sons, Jorge Federico Osorio, performing all five of Beethoven’s piano concertos over two nights.